Near-UV sensitized 1.06 μm emission of Nd3+ ions via monovalent copper in phosphate glass

José A. Jiménez, Mariana Sendova

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Abstract Monovalent copper ions effectively incorporated in Nd-containing phosphate glass by a single-step melt-quench method have been established as near-ultraviolet (UV) sensitizers of Nd3+ ions, resulting in a remarkable 4F3/24I11/2 emission at 1.06 μm. The spectroscopic data indicates an efficient energy conversion process. The Cu+ ions first absorb photons broadly around 360 nm, and subsequently transfer the energy from the Stokes-shifted emitting states to resonant Nd3+ energy levels in the visible. Ultimately, the Nd3+ electronic excited states decay and the upper lasing state 4F3/2 is populated, leading to the enhanced emission at 1.06 μm. The characteristic features of the Cu+ visible emission spectra and the reduced lifetime of the corresponding Cu+ donor states indicate an efficient non-radiative transfer. The Cu+/Nd3+ co-doped phosphate glass appears suitable as solid-state laser material with enhanced pump range in the near-UV part of the spectrum and for solar spectral conversion in photovoltaic cells.

Original languageEnglish (US)
Article number18186
Pages (from-to)425-430
Number of pages6
JournalMaterials Chemistry and Physics
Volume162
DOIs
StatePublished - Jul 15 2015
Externally publishedYes

Keywords

  • Glasses
  • Optical materials
  • Photoluminescence spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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